THESE CODES ARE PROVIDED FOR AN EXAMPLE OF HOW TO USE IMAGEMAGICK WITH PHP. CARE SHOULD BE TAKEN WHEN ACCEPTING USER INPUT.
I TAKE NO RESPONSABILTY FOR ANY PROBLEMS THAT MAY OCCURE WHEN USING ANY OF THIS CODE.
IT IS UP TO YOU TO SECURE THE CODE AND VALIDATE USER INPUT.
Surround the image with a border of color.
$cmd = "$input -bordercolor NavajoWhite ". "-border 10x10"; exec("convert $cmd border.jpg");
( The border increases the size of the image by 2 x the width of the border. The top and bottom border size can be different to the left and right. )
Set the border color.
$cmd = "$input -bordercolor Orange -border 10x5"; exec("convert $cmd bordercolor.jpg");
Adjust the brightness and/or contrast of the image
$cmd = "$input -brightness-contrast 10"; exec("convert $cmd brightness-contrast.jpg");
Assign a caption to an image.
$cmd = "-size 213x160 -background NavajoWhite ". "-fill black -gravity center caption:\"Caption\" "; exec("convert $cmd caption.jpg"); $size = getimagesize( $input ); $cmd = " $input ( -size {$size[0]}x30". " -background black -fill white". " -pointsize 16 -gravity center". " caption:\"Caption\" -flatten ) -append "; exec("convert $cmd caption_size.jpg");
( The font size is automaticaly sellected to fit the width. )
Color correct with a color decision list.
$cmd = "$input -cdl images/cdl.xml "; exec("convert $cmd cdl.jpg");
Work on the specified image channel
$cmd = "$input -channel RB -fx 0 "; exec("convert $cmd channel.jpg");
( Specify those image color channels to which subsequent operators are limited. In this case setting red and blue channels to zero )
Simulate a charcoal drawing.
$cmd = "$input -charcoal 1"; exec("convert $cmd charcoal.jpg");
Remove pixels from the interior of an image.
$cmd = "$input -gravity center -chop 20x20 "; exec("convert $cmd chop.jpg");
( The image size is reduced by the amount of pixels removed from the image. )
Restrict image colors from 0 to the quantum depth.
$cmd = "$input -clamp -colors 50 "; exec("convert $cmd clamp.jpg");
Apply the clipping path if one is present.
$cmd = "$input6 -clip-path -negate "; exec("convert $cmd clip.jpg");
Clip along a named path from the 8BImageMagick profile.
$cmd = "$input6 -clip-path -colorspace Gray "; exec("convert $cmd clip_path.jpg");